Video4Linux

Video4Linux
编程语言C
操作系统Linux
平台Linux内核
许可协议GNU通用公共许可证
网站www.linuxtv.org

Video4Linux或V4L是一個視訊擷取（英语：Video capture）及裝置輸出API，以及Linux的驅動程式框架，支援很多USB摄像头、電視調諧卡（英语：TV tuner card）以及其他裝置。Video4Linux與Linux内核緊密整合，Video4Linux取名的靈感來自Video for Windows（有時候會縮寫為“V4W”），但兩者在技術上並沒有任何關聯[1][2]。

第一版

V4L在Linux内核的2.1.X開發循環中被引入。 V4L1在Linux内核2.6.38放棄支援[3] 。

第二版

V4L2是V4L的第二個版本。Video4Linux2修復了一些設計上的程式錯誤，最先在2.5.X版的核心中出現。Video4Linux2的驅動程式包含了一個對Video4Linux1應用程式的相容模式，雖然支援並不完整，並且建議在V4L2模式下使用Video4Linux1裝置。DVB專案Wiki現在託管在LinuxTV網站上。

支援Video4Linux的軟體

參考資料

  1. ^ 存档副本. [2013-12-04]. （原始内容存档于2014-02-21）.  Overview of the V4L2 driver framework
  2. ^ https://events.linuxfoundation.org/images/stories/pdf/lceu2012_debski.pdf （页面存档备份，存于互联网档案馆） Video4Linux2 - Path to a Standardized Video Codec API
  3. ^ gspca. LinuxTV Wiki. [2014-02-08]. （原始内容存档于2022-04-26）. 

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